diff --git a/static/js/cours.js b/static/js/cours.js
index 2e2a93c..c8ea5f3 100644
--- a/static/js/cours.js
+++ b/static/js/cours.js
@@ -31,7 +31,7 @@ const buildFileTree = (parent, data) => {
 
 window.addEventListener("load", () => {
   const fileTreeElement = document.getElementsByTagName("aside")[0];
-  const dataElement = fileTreeElement.getElementsByTagName("div")[0];
+  const dataElement = fileTreeElement.getElementsByTagName("span")[0];
 
   buildFileTree(
     fileTreeElement,
diff --git a/templates/cours.html b/templates/cours.html
index a46eca7..100c793 100644
--- a/templates/cours.html
+++ b/templates/cours.html
@@ -8,7 +8,7 @@
     <header>{{>navbar.html}}</header>
 
     <aside>
-      <div data-json="{{#data}}{{filetree}}{{/data}} "></div>
+      <span data-json="{{#data}}{{filetree}}{{/data}} "></span>
     </aside>
     <main>
       {{#data}} {{^content}}